Arrangement in doors

ABSTRACT

An arrangement in doors including a door leaf of a first material provided with an insert of a second material having properties differing from those of the first material. The first and second materials are sufficiently flexible to allow opening and closing of the door leaf by winding the door leaf respectively on and off a roller. The insert is replaceable and is attached to the door leaf by at least one row of loops secured to the door leaf and the insert. The loops are interdigitated and interlocked by a pintle wire inserted through the interdigitated loops to establish a pin seam so that the insert may be detached and re-attached to the door leaf. Further disclosed is a covering fabric which covers the insert and is attached to the door leaf by hoop-and-loop fasteners.

BACKGROUND OF THE INVENTION

The subject invention concerns an arrangement in doors of the kindcomprising at least one door leaf of a first material, which door leafis provided with an insert of a second material having propertiesdiffering from those of the first material. Both the first and thesecond materials are sufficiently flexible to allow the door to beclosed by the door leaf being respectively wound-on and wound-off.

In doors of this kind it is often desirable that the insert of thesecond material, which is attached to the first material, is in the formof a window through which it is possible to ascertain the presence onthe other side of the door of objects, such as a vehicle, or of aperson. Such transparent materials are, however, less durable whenexposed to mechanical wear than is the material making up the rest ofthe door leaf. The less durability of such transparent materials is aconsequence of the inherent tendency of such materials to crack whenexposed to temperature variations. Furthermore, after a period ofservice the transparent material generally is scratched to such a degreethat its see-through properties are almost entirely lost andconsequently the transparent window material needs to be replaced.However, to replace the transparent material requires considerable workas the seam must be ripped up and a new piece of material be sewn on. Asa rule, this operation requires that the entire door leaf be dismounted.

In some cases it may be advantageous to replace one window possessingcertain properties by another window having different properties. Forinstance, it may be desirable to install windows of tight transparentmaterials during the winter season while in the summer the use of atransparent material with vent holes therein may be more desirable.

SUMMARY OF THE INVENTION

The subject invention which concerns an arrangement in doors of e.g. thekind defined in the aforegoing provides a possibility of exchanging onesection of the material of the door leaf for another, thus eliminatingthe disadvantages outlined in the aforegoing. This is achieved inaccordance with the invention therein that the second material isreplaceable and in that it is attached to the first material by means ofa device which may be detached from and be reattached to the firstmaterial.

Further characteristics of the invention will appear from the dependentclaims.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in closer detail in the following withreference to the accompanying drawings, wherein

FIGS. 1, 2a and 2b illustrate two different embodiments of possiblemeans of attachment in accordance with the invention, and

FIGS. 3-6 illustrate different embodiments of varying the insert piecein accordance with the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT

FIG. 1 illustrates the joint or seam area bridging the door leaf 1 andthe insert piece 2. In accordance with the embodiment illustrated inthis drawing figure, the joint or seam is a pin seam comprising rows ofloops 3 which are secured to the insert piece or window 2 and loops 4which are secured to the door leaf 1. The loops 3 and 4 are interdigitedand interconnected by means of a pintle wire 5. A covering flap 6 orsimilar fabric piece covers the seam, said covering flap 6 being securedto the window 2 as well as to the door leaf by means of Velcro, orhoop-and-loop fasteners 7, 8, respectively.

FIG. 2a shows the door leaf 1 together with the intermediate window 2which in this case, like the embodiment illustrated in FIG. 1, is madefrom a transparent material. Also in this case the door leaf 1 issecured to the window 2 with the aid of a pin seam including loops 3, 4and a pintle wire 5. FIG. 2b illustrates the manner in which the entirewindow is covered during the winter season in order to prevent heatlosses through the window 2. The latter could be provided with aperturesor vent holes for purposes of ventilation during the summer season. Inthe winter, the window is covered by a covering fabric 9 or the like,which is attached to the door leaf on either side of the window 2 withthe aid of Velcro (hoop-and-loop) fasteners 10, 11, respectively.

FIG. 3 illustrates a door 12 wherein the window section 13 extendstransversely across the entire door leaf. In accordance with the varietyshown in FIG. 4 the window 14 extends vertically along the centre of thedoor leaf, the latter in this case comprising two sections 15 and 16,one on either side of the window section 14. In accordance with theembodiment illustrated in FIG. 5 the door leaf comprises one uppersection 17 and one bottom section 18 and the window section is dividedinto two parts 19 and 20 which are delimited by cross bars 21, 22, and23. The bars 21, 22, 23 preferably are made from the same material asthat of the door leaf sections 17, 18 although this is not absolutelynecessary. FIG. 6, finally, shows a door leaf 24 which frames the windowsection 25 entirely.

The invention is by no means limited to the embodiments described andillustrated in the drawings. For instance, the detachable connectionbetween the window and the door leaf could be achieved in a variety ofdifferent ways. In addition to pin seams, spiral seams, zip fastenersand so on could be used. It is possible to use a fastener in the form ofan H-profile rail in which case the edges of the door leaf and those ofthe window are pushed into engagement in apertured legs where they areanchored with the aid of rivets or similar attachment elements, thelatter being introduced through the apertures in the rail legs andthrough corresponding apertures formed in the window section. Inaddition, the insert piece could be made from other kinds of materialthan transparent ones. For instance, the insert piece could be a fabrichaving vent holes made therein to allow ventilation.

The invention is described in the aforegoing when applied in a roll-updoor leaf but it goes without saying that it could be used in a numberof other flexible door leaves also in structures of other kinds whereproblems of the nature outlined herein are encountered.

I claim:
 1. An arrangement in doors comprising at least one door leaf ofa first material, which door leaf is provided with an insert of a secondmaterial having properties differing from those of the first material,said first and second materials being sufficiently flexible to allowopening and closing of the door leaf by winding the door leafrespectively on and off a roller, wherein said insert is replaceable andis attached to said door leaf by at least one row of loops secured toeach of said door leaf and said insert, said loops being interdigitatedand interlocked by means of a pintle wire inserted through saidinterdigitated loops to establish a pin seam, so that said insert may bedetached and re-attached to said door leaf.
 2. An arrangement as claimedin claim 1, wherein said pin seam is covered at least one side of thedoor leaf with a strip of material secured to the door leaf by means ofhoop-and-loop fasteners.
 3. An arrangement as claimed in claim 1,further comprising a covering fabric, said covering fabric covering saidinsert and being attached to said door leaf by hoop-and-loop fasteners.4. An arrangement as claimed in claim 1, wherein the insert extendsacross an entire width of the door leaf.
 5. An arrangement as claimed inclaim 1, wherein the insert extends across an entire height of the doorleaf.